What? Me? technophobic? I have the latest iPhone, my
office is jam packed with USB gadgets and my car is a
Prius, how much more techno friendly can one get?
That is all fine, but looking beyond fun technologies that we
play with just for fun, or natural, but cool and useful,
evolutions come to most of us easily. But can you honestly say (I
can't) that you always look at the promise of a new technology
and never have never looked at it not from the point of view of
the obvious new advantages, when the technology has developed
into something useful, and instead just looked at it and judged
this new technology only from it's first, shaky,
implementation?
When I was in my early teens (which occurred around the time just
after Mayflower had arrived in New England) my family moved into
our first own house. My parents were running a restaurant at the
time (they ran one or the other all through my childhood) and …
This article addresses the benefits provided from database
virtualization. Before we proceed however, it is important to
explain that database virtualization does NOT mean simply running
a DBMS inside a virtual machine.
Database Virtualization, More Than Running a DBMS in a Virtual
Machine While running a DBMS in a VM can provide advantages
(and disadvantages) it is NOT database virtualization. Typical
databases fuse together the data (or I/O) with the processing
(CPU utilization) to operate as a single unit. Simply running
that single unit in a VM does not provide the benefits detailed
below. That is not database virtualization that is merely server
virtualization.
An Example of the Database
Virtualization Problem Say you have a database handling
banking and I have $10MM in the bank (I wish). Now let’s assume
that the bank is busy, so it bursts that database across 3 VM
nodes in typical cloud-style. …
This article addresses the benefits provided from database virtualization. Before we proceed however, it is important to explain that database virtualization does NOT mean simply running a DBMS inside a virtual machine.
Database Virtualization, More Than Running a DBMS in a Virtual
Machine While running a DBMS in a VM can provide advantages
(and disadvantages) it is NOT database virtualization. Typical
databases fuse together the data (or I/O) with the processing
(CPU utilization) to operate as a single unit. Simply running
that single unit in a VM does not provide the benefits detailed
below. That is not database virtualization that is merely server
virtualization.
An Example of the Database
Virtualization Problem Say you have a database handling
banking and I have $10MM in the bank (I wish). Now let’s assume
that the bank is busy, so it bursts that database across 3 VM
nodes in typical cloud-style. Now …
Take 50% Off COLLABORATE 13 Now Through Wednesday But you’ve got to act fast! If you’re not already one of the many joining the IOUG at COLLABORATE 13 – IOUG Forum, sign up today for your chance at attending for … Continue reading →
Sometimes we encounter odd application responses that seem to make no sense. One of these such issues is related to running virtual server instances (OS Containers not Para-Virtualized VMs) and attempting to back up their data to Amazon’s S3 cloud storage. For moderately sized virtual machines running MySQL databases or Python/PHP based websites and code repositories this can be an inexpensive, quickly provisioned, and easy way to provide disaster recovery backups in numerous geographic locations, since we generally want DR content to be located in a physically distant location. Nevertheless, we can encounter errors if using an S3 mount in a distance location from our server if the timezone/sync data is incorrect.
The commonly seen error is as follows – and it doesn’t give much information for troubleshooting and resolution.
WARNING: Upload failed: ([Errno 32] Broken pipe) WARNING: Retrying on lower speed (throttle=0.00) …[Read more]
This is a response to a blog postby analyst and marketing consultant
Curt Monash.
Originally virtualization meant running one operating system in a
window inside of another operating system, e.g. running a Linux
on a Windows machine using Microsoft Virtual PC or VMWare. Then
virtualization evolved to mean slicing a single server into many
for more granular resource allocation (Curt’s ex uno
plures, translated: out of one, many). It has since
expanded to include e pluribus unum (from many, one)
and e pluribus ad pluribus (from many to many). This is
evidenced in the use of the term “virtualization” to create the
compound words: server virtualization, storage virtualization,
network virtualization and now database virtualization.
Server Virtualization: Abstracts the physical …
This is a response to a blog postby analyst and marketing consultant Curt Monash.
Originally virtualization meant running one operating system in a window inside of another operating system, e.g. running a Linux on a Windows machine using Microsoft Virtual PC or VMWare. Then virtualization evolved to mean slicing a single server into many for more granular resource allocation (Curt’s ex uno plures, translated: out of one, many). It has since expanded to include e pluribus unum (from many, one) and e pluribus ad pluribus (from many to many). This is evidenced in the use of the term “virtualization” to create the compound words: server virtualization, storage virtualization, network virtualization and now database virtualization.
Server Virtualization: Abstracts the physical (servers), presenting it as a …
[Read more]
On the 8/16 I conducted a webinar titled: "Scale Up vs. Scale
Out" (http://www.slideshare.net/ScaleBase/scalebase-webinar-816-scaleup-vs-scaleout):
ScaleBase Webinar 8.16: ScaleUp vs.
ScaleOut from ScaleBase
The webinar was successful, we had many attendees and
great participation in questions and
answers throughout the session and in the
end. Only after the webinar it only occurred to me
that one specific graphic was missing from the webinar deck. It
was occurred to me after answering
several audience questions about "the difference
between …
I feel a sense of pride when I think that I was involved in the development and maintenance of what was probably the first piece of software accepted into Debian which then had and still has direct up-stream support from Microsoft. The world is a better place for having Microsoft in it. The first operating system I ever ran on an 08086-based CPU was MS-DOS 2.x. I remember how thrilled I was when we got to see how my friend’s 80286 system ran BBS software that would cause a modem to dial a local system and display the application as if it were running on a local machine. Totally sweet.
When we were living at 6162 NE Middle in the nine-eight 292, we got an 80386 which ran Doom. Yeah, the original one, not the fancy new one with the double barrel shotgun, but it would probably run that one, too. It was also …
[Read more]The brief outage was due to a scheduled move of the servers to a separate rack and subnet dedicated to our work with the Center for Information Assurance & Cybersecurity (ciac) at the University of Washington Bothell (uwb), and a11y.com
I am currently exercising the new (to us) equipment and hope to winnow the less than awesome equipment over the next quarter. I spent the last six months finding the best in breed of the surplussed DL385 and DL380 chassis we (work) were going to have recycled. The team and I were able to find enough equipment to bring up one of each with eight and six gigs of memory, respectively. These will make excellent hypervisors for provisioning embedded instances of Slackware, Fedora, RHEL, CentOS, Debian, FreeBSD, OpenSolaris, OpenIndiana, FreeDOS, etc.
When I initially configured this xen paravirt environment, I failed to plan for integration with libvirt, so I am now re-jiggering the software bridges so …
[Read more]